Rudder ratio/ mach airspeed trim

I never really understood what these warnings mean. I know mach airspeed trim has to with the adjustment of trim at higher speeds but what about rudder ratio?

@Misrael102… Both terms are clearly defined and outlined in Wikipedia and may be found on line. For your future reference I recommend you download the free publication"The Pilots Handbook of Aeronautical Knowledge" from the web site : “faa.gov”. Max Sends

1 Like

Oh well…i have pilot flying handbook. There problem solved;)

1 Like